On a page like Wikipedia's Animal Farm there is a list of characters. Some items in this list could link to their own articles. In the navbox which is another list, at the bottom of this and other pages there are links to these articles.
Because the two lists of links are maintained manually they're not kept in sync. How to connect them, so that only updating one also causes the other to be updated?
Each article usually has an infobox listing aspects that differentiate between the subjects. This can also help to navigate around the subject. It should also by synced in some way. Perhaps the infobox is where the users enter the information that's used by the navboxes and lists.